Experimental and numerical study on swirlmeter with different helix angles of swirler

Abstract

Swirlmeters are widely used to measure the flowrate in engineering due to its simple structure, stable operation stability, and accurate measuring precision. In this paper, in order to disclose the influence of different helix angles of swirler on the metering characteristics of the swirlmeter, the metrological performance and internal unsteady flow of a swirlmeter assembled with three swirlers with different helix angles were studied through physical experiments and numerical calculations. The results show that with the increasing helix angle of swirler, the pressure loss of swirlmeter and meter factor K decrease almost linearly, the vortex core center at throat of the swirlmeter is gradually off-center. In the direction of central axis of the throat, the amplitude of dominant frequency of pressure pulsation increases with the increasing helix angle of swirler.

Numerical Simulation of Steady Flow of Vortex Flowmeter

“…Convergence precision of all residuals is under 0.0001. In author previous works, the numerical method has been verified that it is able to accurately calculate the flowmeter performance by comparing with the experimental data (Zhang, et al, 2019).…”

Heat Flow Distribution Characteristics of Solid Wall of Nozzle Flowmeter

“…Sahand et al designed a new multiphase flowmeter by coupling a slotted orifice plate with a swirl flowmeter, and evaluated the performance with high-accuracy two-phase flow measurements (Sahand et al (2014)). In addition, other all kinds of flow characteristics has also been deeply studied (Cheng et al (2020), Zhang et al (2019), Chen et al (2016), Cui et al (2015), Bilicki et al (2002), Kock and Herwig et al (2004), Tao et al (2020), Cui et al (2020), , , Jia et al (2022), Jia et al (2022), ).…”

Numerical investigation and characteristic analysis of the swirl meter with different swirlers

“…Therefore, increasing the lead of the swirler and the throat diameter could result in better pressure loss and performance. 13,14 In our previous research, we analyzed the flow fields and studied the influence of measuring tube structure and found throat diameter played an important role in determining the precession frequency. [15][16][17][18] Moreover, a detailed flow analysis of swirl meter performance was performed by processing physical quantities into timeaveraged ones, the focus was about the basic characteristics of pressure and velocity at different regions.…”

“…Therefore, increasing the lead of the swirler and the throat diameter could result in better pressure loss and performance. 13,14…”